Twisting-machine.



A. G. SHIDEED.

TWISTING MACHINE.

APPLICATION FILED AUG. 10, 1912.

1,057,463; Patented Apr. 1, 1913.

ATTORNEY.

COLUMBIA PLANOGRAPH c0., WASHINGTON, D, c

UNITED STATES PATENT OFFICE- ABRAHAM G. SHIDEED, OF' LAWRENCE, MASSACHUSETTS.

TWISTING-MAGHINE.

T 0 all whom it may concern Be it known that I, ABRAHAM G. SHIDEED, a citizen of Turkey, residing at Lawrence, in the county of Essex and State of Massachusetts, have invented certain new and useful Improvements in Twisting-Machines, of which the following is a specification.

This invention relates to machines for twisting textile fibers and is more particularly applicable to what are known as fliers, slubbers, intermediates, dandies, finishers, weigh boxes, and to any roving frames which are operated with fliers and used in twisting cotton, woolen or worsted fibers.

In the method of twisting fibers where the drag system is used, there is a power driven spindle which carries with it a flier. Slidable and revoluble upon the spindle is a bobbin upon which the roving or yarn is wound after it is twisted. This bobbin is carried by a rail and may rest upon a washer to regulate the drag. The sliver or roving passes downward through the top of the spindle, through an eye on the flier around or through an armof the flier and thence to the bobbin. As the flier revolves, the sliver or roving which is being twisted by the rotation of the flier drags the bobbin after it at a speed somewhat less than the flier, the speed being determined by friction on the drag washer or the friction of the sliver or roving as it passes around the flier arm. With these frames, if for any reason the machine is stopped, the power driven flier stops promptly but the momentum of the bobbin carries it along thus unwinding the roving or yarn therefrom and allowing it to break or to drop slack onto the oily parts of the machine doing a great deal of amage.

The purpose of my invention is to stop the bobbin when the flier stops but without interfering with the normal twisting process.

Figure 1 is an elevation of my device showing a partly filled bobbin in place. Fig. 2 is a fragmentary sectional elevation of my device with the bobbin empty. Fig. 3 is a top view of Fig. 1. Fig. 4 is an enlarged elevation from the left of Fig. 1 showing in detail the ratchet and pawl. Fig. 5 is an elevation and Fig. $3 is a section of Fig. 5 on line XY showing a modified form of my device.

A is the spindle preferably hollow at the top and with an outlet 14 in the side. B is the flier of the usual form carried thereby.

Specification of Letters Patent.

Patented Apr. 1, 1913.

Application filed August 10, 1912. Serial No. 714,407. 7

Flier B has arms 10 and 11 at least one of which 11 has an eye 12 through which the roving or yarn passes to the bobbin C.

C is the bobbin having a top head 20 and a bottom head 21.

D is the rail which raises and lowers bobbin C, and E is the drag washer of well known construction.

F is the roving or yarn.

In the top head 20 is a hole 22 and upon this top head 20, I rest a plate 30 having a pin 31 which enters hole 22 whereby plate 30 will revolve with bobbin C. Around the top of plate 30 is a ratchet 32 and near its center is an embossed extension forming a bearing 33.

Revoluble in bearings 33 is a hub 44 having a head 48, which holds bearing 33 and hub 44 together and an arm 45 which extends radially outward and has a passage 46 through which passes arm 10 of flier C. Arm 45 may be threaded to screw on to hub 44 or it may be otherwise attached thereto. Depending from arm 45 is a pawl 47 in engagement with the teeth of ratchet 32. I prefer to use a spring 58 to depress pawl 47. I also prefer to use a weighted arm 49* to balance arm 45 and pawl 47. The teeth of ratchet 32 pitch in such a direction and pawl 47 is so placed with reference to the direction of rotation of flier B, that pawl 47 will slide over the teeth of ratchet 32 without interfering with the drag on bobbin C during the ordinary operation of the frame. Arm 45 and pawl 47 must revolve with the spindle but will rise and fall with the bobbin. When however the frame is stopped from any cause, and flier B becomes stationary, arm 45 and pawl 47 are also stopped and as the momentum of bobbin C tends to make it continue to rotate, the teeth of rack 32 are forced against pawl 47 which stops them and stops the plate 30 and bobbin C- thereby preventing any slack of the sliver.

In the construction shown in Figs. 5 and 6, the bobbin C flier B and ratchet 32 are the same, but spindle H has a longitudinal groove or key way 40 and arm 42 which carries pawl 43 is formed with a key 41 which engages key way 40. Thereby arm 42 must revolve with spindle H but will rise and fall with bobbin 0.

What I claim as my invention and desire to cover by Letters Patent, is:

1. In a fly frame, the combination of a spindle, a flier carried thereby, and a bobbin revoluble on the spindle, with a ratchet attached to the bobbin, and an arm carried by the spindle having a pawl in engagement with said ratchet as described.

2., In a fly frame, the combination of a spindle, a flier carried thereby, and a bobbin revoluble 0n the spindle, with a ratchet revoluble with the bobbin, and an arm slidable up and down on the spindle and revoluble "with the flier, and a pawl carried by the ABRAHAM G. SHIDEED.

Witnesses GARDNER W. PEARSON, HARRY R. LAWRENCE.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

